DIN 25CrMo4/SCM425
25CrMo4 has high hardenability, no temper brittleness, good weldability, little tendency to form cold cracks, good machinability and cold strain plasticity. Generally, it is used in the quenched and tempered or carburized and quenched state. 25CrMo4 alloy steel is used to manufacture high-pressure pipes, various fasteners, and higher carburized parts, such as gears, shafts, etc., which work in non corrosive media and media with a working temperature lower than 250 ℃ and a mixture of nitrogen and hydrogen.
Designation by Standards
| Brand Name | Ravne No. | Mat. No. | DIN | EN | AISI |
| PO734 | 734 | - | 25CrMo4 | - | - |
Chemical Composition (in weight %)
| C | Si | Mn | Cr | Mo | Ni | V | W | Others |
| 0.26 | 0.20 | 0.65 | 1.10 | 0.18 | 0.30 | - | - | - |
Applications
Aerospace material.
Physical properties (avarage values) at ambient temperature
Modulus of elasticity [103 x N/mm2]: 210
Density [g/cm3]: 7.85
Forging
Hot forming temperature: 1100-850oC.
Disclaimer
The information and data presented herein are typical or average values and are not a guarantee of maximum or minimum values. Applications specifically suggested for material described herein are made solely for the purpose of illustration to enable the reader to make his own evaluation and are not intended as warranties, either express or implied, of fitness for these or other purposes. There is no representation that the recipient of this literature will receive updated editions as it become available.
